Safety window



March 13, 1928.

A. WEISS SAFETY WINDOW Filed March 22,1927

Patented Mar. 13, 1928.

LDOLI' WEISS, EAST PITTSBURGH, PENNSYLVANIA.

SAFETY WINDOW. I

Application filed March 22, 1927. Serial No. 177,428.

This invention relates to windows of the type commonly used in home andbuilding constructions and particularly to windows comprising upper andlower slidably mounted sections and has for one of its objects theprovision of a window mounting adapted to permit both sections to beretained open at the same time thereby permittingthe maximum area of theopening in the wall of the building to be uncovered.

Another object of my invention is the provision of a pivotally mountedwindow section adapted to be suitably positioned to direct the draft ofair passing through the window when open, and to allow a simple means ofremoving the window frame for repairing and replacing window panes.

Another object of my inventlon is the provision of a window mountingadapted to per? mit cleaning the windows from the inside of the house,thus eliminating the danger of sittingon the window sills.

A still further object of my invention is the provision of safetylocking means for preventing the upper section of slidably mountedwindow sections from being lowered and abutted against the lower sectionthereof when the latter is rotated in open position.

Another object of my invention is the provision of safety locking meansfor preventing the lower section of a slidably mounted sectional windowfrom being raised when the upper section thereof is rotated in openposition.

A further object of my invention is the provision of a Window-comprisingslidably mounted sections each of which may be rotated to open position.

Other objects will appear hereinafter, the

Fig. 3 is a transverse sectional view taken on the line 3-3 of Fig. 1.

Fig. 4 is a sectional view of the locking mechanism taken on the line4-4 of Fig. 1.

Fig. 5 is a vertical sectional view of the locking mechanism taken onthe line 5-5 I of Fig. 4.; and

Fig. 6 is a sectional view taken on the line 6-6 of Fig. 2.

Referring particularly to Fig. 1 of the drawing, the numeral 10designates the window sash in which my improved window sections aremounted and the numerals 11 and 12 designate respectively, the upper?and lower ends of the sash 10. The upper and lower sections of thewindow, desigu nated by the numerals 13 and 14, respectively, aremounted in the sash 10 in the usual manner with the lower window sectionpositioned inside of the upper window section as shown in Fig. 2. Eachof the window sections comprise an outer frame which is slidably mountedin the sash 10 in the cus tomary manner. The lower window frame 15 beingprovided with an inner frame 16 and the upper window frame 17 beingprovided with an inner frame 18. Each of the inner frames is adapted tohold a pane of glass 19, in the usual well-known manner of windowconstruction. and is locked by suitable latches 16' and 17'.

The inner frames 16 and 18 are pivotally mounted in the outer frames 15and 17 respectively, as shown in Figs. 1 and2. A bracket 20 comprising asocket is mounted on the upper end member of the inner frame 18. Asecond bracket 21 is mounted on the upper end member of the outer frame17 directly below the bracket 20. The bracket 21 is provided with a studor pin 23 which is journaled in the socket of the bracket 20. Similarpairs of brackets are mounted on the lower end members of the outer andinner frames 15 and 16,'respectively. The bracket 24 is mounted on thelower end of the inner frame and is provided with a ends of the innerand outer frames of the lower window section are also connected withsimilar brackets as shown in Fig. 1, the bracket 27 being mounted on theupper end member of the inner frame having a projection or stud 28,journalcd in a socket of the bracket 29 mounted on the upper end memberof the outer frame. As shown in Fig. 2, the lower ends of the inner andouter frames of the upper window section are also pivotally connectedtogether by brackets 30 and 31, respectively, it being understood thatthere is a projection 32 or stud mounted on the bracket 30 journaled ina socket in the bracket 31.

It should be understood that the above described construction pivotallysupports the inner window frames in the outer window frames so that whenthe outer window frames are in the osition shown in Fig. 1, both of theinner rames may be rotated to open position thus permittingsubstantially the entire opening in the wall to be uncovered. Each ofthe inner window frames is pivoted independent of the other in theirrespective outer frames.

In the event that either the upper or the. lower inner frame is rotatedto open position it is desirable that this rotation be effective inlooking the remaining window section so that it cannot be lowered orraised, as the case may be, and jammed into the rotated inner frame.This locking operation is accomplished by the mechanism shown in Figs. 2to 6 inclusive. It will be seen in Fig. 4 that the stud 25 extendsthrough the socket of the bracket 26 and that the end thereof dependsinto a recess 32 An arm 33 is mounted on the end portion of the stud 25and is rigidly secured thereto by a setscrew 34. This arm is disposeddownwardly in the form of a hook at its outer end. The hook portion 35of the arm 33 is disposed in an arcuate groove 36 in the lower endmember 12 of the sash 10. This arcuate groove is under-cut as shown inFigs. 4 and 5 to provide a passage for the extremity of the hook 35. Aslot 37 communicating with the under-cut portion of the arcuate groove36 is provided in the lower member of the sash to permit the hookportion 35 of the arm 33 to be withdrawn from the under-cut portion ofthe arcuate groove 36 when the arm is in a predetermined position. Itshould be understood that when the inner frame is rotated to closedposition the hook 35 is positioned in registration with the slot 37 andthe outer frame is free to be raised, but when the outer frame isrotated to open position the hook is out of registration with the slot,and the outer frame is restrained from being raised. The upper end ofthe up er window section is provided with simi ar locking means and inview of the identical construction thereof, it is not thought that a.duplicate description is necessary.

The stud 32 mounted on the lower end of the upper inner window sectionas shown in Fig. 6 is provided with a semi-circular plate 38 having aslot 39 therein. This plate is rigidly mounted on the end of the stud 32which extends through the end member of the outer frame 17 and isadapted to rotate in unison therewith. An arm 40 is rigidly mounted inthe stud 28 of the upper member of the inner frame of the lower windowsection and is adapted to extend beneath the. plate 38. It should beunderstood that both the plate 38 and the arm 40 rotate in unison withtheir respective studs and that the studs rotate when the inner framesare rotated. Thus when the frames are in closed posit-ion as shown inFigs. 1 and 2, the arm 40 is in registration with the slot 39 and thesections may be raised and lowered relative to each other. but wheneither inner frame is rotated to open position the arm and slot aremoved out of registration with each other and neither of the sectionsmay be raised.

Having thus fully shown and described an embodiment of my invention,what is desired to be secured in Letters Patent of the United States is:

1. A window comprising up er and lower slidably mounted window fi'ames,inner frames concentrically mounted within said upper and lower slidablymounted frames, pins rigidly mounted on the end members of said innerframes and journaled on the end members of said slidably mounted framesfor pivotally attaching said inner frames to said slidably mountedframes, 0. plate mounted on the end of the lower pin of said upper innerframe having a slot therein, and an arm mounted on the upper pin of saidlower inner frame adapted to engage said plate, said arm and said platebeing adapted to rotate in unison with the respective pins to which theyare attached, said arm being positioned to register with the slot ofsaid plate when both the inner frames are in closed position to permitraising and lowering of said slidably mounted frames and adapted toengage said plate when either of said inner frames is rotated to openposition for preventing raising or lowering of said slidably mountedframes.

2. A window comprising upper and lower slidably mounted window frames,inner frames concentrically mounted within said upper and lower slidablymounted frames, pins rigidly mounted on the end members of said innerframes and journaled on the end members of said slidably mounted framesfor pivotally attaching said inner frame to said slidably mounted frame,an arm rigidly attached to the lower in of the lower inner frame, adownward y dismamas 8 posed hook on the extremityof said arm, lowerslidabi mounted frame, said hook 10 a sash member having an arcuateunder-cut being adapts to rotate in unison with saici slot thereinadapted to receive the hook of inrior section to a position out ofregistration said arm, said sash member being provided wlih Said Slotfor preventing retraction of with a slot communicating with the undersmdhook from said groove when the inner cut portion of said groove forpermitting frame is in open posltion. 15 retraction of said; hook fromthe under-out In testimony whereof I have afixed my portion of saidgroove when said inner frame signature.

is in closed position to permit raising of said OLF WEISS.

